[4] With other principles he developed the concept of work simplification, which he explained in his 1932 book Common sense applied to motion and time study.
[7] After conducting training sessions in large firms, in 1937 Morgensen, Lillian Gilbreth and associates started training business people in work simplification methods and business process modeling in his Work Simplification Conferences in Lake Placid, New York.
[8] In 1944 Art Spinanger attended Mogensen's classes, and back at Procter and Gamble started their remarkable "Deliberate Methods Change" program.
[9][10][11] Another of their students was Benjamin S. Graham, who started applying scientific management and industrial engineering techniques to offices and clerical work in factories, and coined the concept of paperwork simplification.
[12] Early 1940s Mogensen was noted for making movies of operations in hospitals, where he discovered that surgeons could work faster by avoiding lost motions, and in doing so reduce the mortality rate.